Recent Earthquakes in California and Nevada
== PRELIMINARY EVENT REPORT ==
Southern California Seismic Network: a cooperative project of
U.S. Geological Survey, Pasadena California
Caltech Seismological Laboratory, Pasadena, California
Version #5: This report supersedes any earlier reports of this event. This is a computer-generated message. This event has not yet been reviewed by a seismologist.
A micro quarry occurred at 2:01:32 PM (PDT) on Friday, August 15, 2025.
The magnitude 1.1 event (a probable quarry explosion) occurred 15 km (9 miles) SSE of Ocotillo Wells, CA.
The hypocentral depth is 0.41 km (0.30 miles).
| Magnitude | 1.1 - local magnitude (Ml) |
| Time | Friday, August 15, 2025 at 2:01:32 PM (PDT) Friday, August 15, 2025 at 21:01:32 (UTC) |
| Distance from |
Ocotillo Wells, CA - 15 km (9 miles) SSE (161 degrees) Ocotillo, CA - 33 km (20 miles) NNW (346 degrees) Salton City, CA - 33 km (21 miles) SSW (200 degrees) Borrego Springs, CA - 38 km (24 miles) SE (134 degrees) Westmorland, CA - 43 km (27 miles) W (267 degrees) |
| Coordinates | 33 deg. 1.2 min. N (33.020N), 116 deg. 4.8 min. W (116.080W) |
| Depth | 0.41 km (0.30 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=25, Nph=32, Dmin=17.2 km, Rmss=0.32 sec, Erho=0.42 km, Erzz=0.98 km, Gp=63 degrees |
| Event ID# | ci40399722 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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